<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        *{
            box-sizing: border-box;
        }
        a{
            -webkit-tap-highlight-color: transparent;
            
        }
        input{
            -webkit-appearance: none;
        }
    </style>
</head>
<body>
    <a href="#">可怕</a>
    <input type="button" value="难说">
</body>
</html>